Metal window sash and frame.



Patented Aug. 22, I899.

' C. MGSHERRY.

METAL WINDOW SASH AND FRAME. (Appl cat on filed Nov 14 189 8) 3Sheets-Sheet I" (No Modei.)

R O T N E V m N0. 63l,529. Patented Aug. 22, I899.

C.McSl -IERRY.

METAL WINDOW SASH AND FRAME.

(Application filed Nov. 14, 1898. (No Model.) 3 Sheets-Sheet 2.

rm: norms I'EYEHS w, PMOTULIYHQ, wxs-amc-Ton. u. c,

No. s3|,529. Patented Aug. 22, I899. c. McSHERBY. METAL WINDOW SASH ANDFRAME.

(Application filed Nov. 14, 1898.

' (No Model.) 3 $heets -Sheet 3,

I WITNESSES Cali 23112217 I ZZZ MW m: "cams FEYERS co. WOTO-LITHOHwAsumcfou. u. x;

UNITED STATES PATENT EEIcE.

CHARLES MCSHERRY, OF PITTSBURG, PENNSYLVANIA.

METAL WINDOW SASH AND FRAME.

SPECIFICATION forming part of Letters Patent No. 631 ,529, dated August22, 1899.

Application filed November 14, 1898. Serial No. 696,345. (No model.)

- To all whom it may concern.-

Be it known that 1, CHARLES MCSHERRY, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Metal Window Sashes and Frames, of which the following isa full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure 1 is a front elevation, partly broken away, looking at theinterior of a window constructed in accordance with my invention. Fig. 2is a broken cross-section on the line II II of Fig. 1. Fig. 3 is avertical section on the line III III of Fig. 1. Figs. 4 and 5 arediagrammatic views illustrating the manner of placing the cords andtheir pulleys for operating one of the sashes, and Fig. 6 is an enlargedcross section of the interlocking frame and sash.

My invention relates to Window sashes and frames, and more especiallythose used in fireproof buildings, and is designed to improve theconnection between the sashes and the guides so as to make these jointssubstantially dust-proof and to reduce the space occupied by the sashand the frame, as well as to improve the arrangement'and connections ofthe operating-cords and remove them from view.

In the drawings, 2 represents the upper and 3 the lower sash of awindow, and 4 4 Secured to each of these means are two guides 6 6, onefor the upper sash and the other for the lower sash, which guides arebent in such a way as to form slotted openings, into whichsuitably-shaped strips upon the edges of the sash will project. I haveshown these strips as bent into spiral form and the strips 7 at the sideedges of the sash 8 as bent into curved form and projecting into theinterior of the guide-strips; but it is evident that other suitableguides may be devised for attaining this same result. The strips uponthe window thus interlock with the guides to form a substantiallydustproof joint and to guide the sashes in their vertical movements.

The glass is clamped between the strips 7 of the sashes and aseparable'strip 8, which is secured to the sash by screws 9 or othersuitable means.

It will be noticed that the side members, as well as the top and bottommembers, of the window-frame are formed of ordinary commercial T-iron,the projecting web of which fits in' the brickwork and is securely heldthereby, these T-irons being suitably tied together at their meetingends.

To the end portion of each projecting strip 7 of each sash is securedone member of a continuous cord 10, the end portion of the metalpreferably being crimped to the cord. The end portions of both membersof this cord pass to and are wound about different portions of a drum11, supported upon suit- .able bearings in the hollow subsill 12 of theThe forwardly-projecting Window frame. end of the drum-shaft is providedwith a disk 13, having a handle 14, provided with a forwardly-projectingpin 15, arranged to enter any one of the circular series of holes in thecover-plate of the subsill. The handle slides upon a central pin 16 andis normally forced forwardly by a spring 17, contained therein.

The sash may thus be locked in any adjusted position, as thewinding-drum is prevented 'from rotation by the pin upon the handleentering one of the holes, thus doing away with the necessity for anyadditional sash-lock.

Referring to the diagrammatic views, the cord 10, starting at the pointa upon the winding-drum, passes under the pulley 18, thence upwardly andover the top pulley 19, this portion passing up near the inner part ofthe guide, as shown at b in Fig. 2. From the pulley 19 it extends acrossthe top of the window-frame and outwardly to a pulley 20 and thencedownwardly in line with the outer portion of the guide at a point.opposite that shown at c in Fig. 2 to a lower outer pulley 21 and thenceback to the same winding-drum at the inner portion thereof, and iswrapped about this drum several times, sufficient to give a length ofrope thereon equal to the travel of the sash. Thence it extends from theunder side of the drum to a pulley 22, upwardly to the pulley 23', thisbranch being directly opposite the point marked b in Fig. 2. Thence itextends outwardly and across the top of the window to an outer upperpulley 24 and thence down to the sash at point 0 (shown in Fig. 2) anddown to a pulley 25 and thence back to the drum, around which it isagain wrapped a sufiioient number of times to give a length equal to thetravel of the sash. In each series of wrappings upon the drum the cordis cut so as to allowits ends to be moved past each other to give thedesired tension, these out ends then being secured to the drum. Thearrows of Fig. 4- indicate the movement of the cord in raising the sashwhether the upper orlower sash. Figs. I and 5 show only one sash withits cords to avoid confusion-of parts.

The lower ends of the curved. sheet-metal guides are preferably providedwith upwardly-projecting nipples 26, through which the cords pass, thuspreventing any water which may enter the guide from contacting with thecables.

The top member of the window-frame is made hollow to receive the upperpulleys 19, 20, 23, and 24, which are mounted upon suitable bearingstherein.

The advantages of my invention will be apparent to those skilled in theart. A practically dnst-proof joint is provided between the sash and theframe, and the sash is guided in its movements by this connection. Asimple and effieient frame for the window is provided, which may becheaply made and securelyheld in place. The use of the cord for eachsash, with means for locking the drum, gives a simple and eflicientmeans for raising and lowering the sashes and for locking them in anyadjusted position. The operating mechanism is concealed and a neat andattractive appearance afforded.

Many changes maybe made in the form and arrangement of the parts withoutdeparting from my invention, since I claim 1. In a window, thecombination with a side frame and the sash, of a guide secured to one ofsaid members, said guide being curved or bent to form an inclosedslotted channel, and a projecting bent or curved strip secured to theother member and entering the slotted channel to interlock therewith;substantially as described.

2. he combination with a side frame, having a spirally-bent guide, of asash having a curved projecting strip entering the interior of thespiral; substantially as described.

3. The combination with a frame, having a guide formed with a slottedchamber, of a sash having a strip entering the chamber, and a cord fixedto the strip and moving within the said chamber; substantially asdescribed.

4. The combination with a sash, of a cord extending from a winding-drum,and passing over pulleys within the four corners of the frame, and meansfor locking the drum in any adjusted position; substantially asdescribed.

5. The combination with a sash, of a cord having its members securedthereto, said cord passing over pulleys within the four corners of thewindow-frame, and having portions wrapped upon a drum, said portionsbeing of length suflicient to allow the proper movement of the sash, andmeans for locking the drum in any adjusted position substantially asdescribed.

G. A window-frame having a member consisting of a rolled T-shaped iron,with the centrally-located base secured in the wall; substantially asdescribed.

7. A window-frame having side members formed of T-irons, tubular slottedguides secured thereto, and sashes having projecting side stripsentering the slotted guides; sub

stantially as described.

In testimony whereof I have hereunto set my hand.

CHARLES MCSIIERRY. \Vitnesses:

L. A. CONNER, J12, G. I. IIOLDSHIP.

